Towards an understanding of Type Ia supernovae from a synthesis of theory and observations
Towards an understanding of Type Ia supernovae from a synthesis of theory and observations
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DOI：
10.1007/s11467-013-0303-2
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发表时间：
2013-02
影响因子：
7.5
通讯作者：
W. Hillebrandt;M. Kromer;F. Röpke;A. Ruiter
中科院分区：
文献类型：
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作者：
W. Hillebrandt;M. Kromer;F. Röpke;A. Ruiter
Ia 型超新星 (SNe Ia) 的校准光变曲线已成为确定宇宙膨胀历史的主要工具，这一事实的推动下，过去 15 年中这些事件的观测和模型受到了相当多的关注。在这里，我们总结了新的观测限制，通过三维流体动力学模拟解决了 Ia 型超新星建模的最新进展，并讨论了一些仍然悬而未决的问题。事实证明，新模型具有相当大的预测能力，使我们能够研究可观察的特性，例如光变曲线和光谱，而无需调整非物理参数。这是提高我们对爆炸机制的理解和解决超新星 Ia 作为宇宙学距离指标的适用性问题的必要条件。我们通过将模型与观测结果进行比较来探索模型的功能，并展示如何应用这些模型来研究超新星 Ia 多样性的起源。
Motivated by the fact that calibrated light curves of Type Ia supernovae (SNe Ia) have become a major tool to determine the expansion history of the Universe, considerable attention has been given to, both, observations and models of these events over the past 15 years. Here, we summarize new observational constraints, address recent progress in modeling Type Ia supernovae by means of three-dimensional hydrodynamic simulations, and discuss several of the still open questions. It will be be shown that the new models have considerable predictive power which allows us to study observable properties such as light curves and spectra without adjustable non-physical parameters. This is a necessary requisite to improve our understanding of the explosion mechanism and to settle the question of the applicability of SNe Ia as distance indicators for cosmology. We explore the capabilities of the models by comparing them with observations and we show how such models can be applied to study the origin of the diversity of SNe Ia.